Cryptology ePrint Archive: BibTeX Citation of Report 2015/918

@misc{cryptoeprint:2015:918,
    author = {Md Iftekhar Salam and Kenneth Koon-Ho Wong and Harry Bartlett and Leonie Simpson and Ed Dawson and Josef Pieprzyk},
    title = {Finding State Collisions in the Authenticated Encryption Stream Cipher ACORN},
    howpublished = {Cryptology ePrint Archive, Report 2015/918},
    year = {2015},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.